Working changes, reading and working with the fan monitor

CCD_I2C.py

@@ -342,9 +342,14 @@ if READ_SET_FAN :
     read_tacho()
     set_fan_off()
     sleep(10)
+    read_tacho()
     set_fan_speed(75)
     sleep(10)
     read_tacho()
+    set_fan_speed(100)
+    sleep(10)
+    read_tacho()
+
 
 if READ_SENSOR:
     ccd_sensors()